I went after his guy Solo with my Necro I hit him with my best life tap. It does 500+ on yellow and 400+ on OJs. I was only able to hit him for 195 (-45) and he was OJ.
Not only that he brings his buddies with him . . . as though he needed help. Pfft
Brought a Pally and a Friar, along next time we killed him and No drops :/
Do not waiste time attacking this Bozo, unless you have lots of time to fart away. <shrug>